Organism
Definition 1 of 2
Pro Tip 1/3
Living Examples
Think of organisms as individual entities that grow, reproduce, and respond to their environment. Microscopic algae are organisms that produce oxygen.
Pro Tip 2/3
Scale Variation
Organisms can vary dramatically in size from tiny bacteria to giant whales. The blue whale is the largest known organism.
Pro Tip 3/3
Habitat Diversity
Organisms live in diverse habitats, so specify the environment when possible. Coral reefs are home to numerous marine organisms.